Effects of Exercise on the Human Body

When you rest how fast does your heart beat?

At rest, your heart beats about 50 to 100 times each minute.

When you exercise how fast does your heart beat?

During activity or excitement, your body needs more oxygen-rich blood for energy ; the heart rate rises to well over 100 beats per minute.

What happens during exercise?

During exercise, the muscle cells respire more than they do at rest. This means: Oxygen and glucose must be delivered to them more quickly. Waste carbon dioxide must be removed more quickly.

How does the heart beat/rate and breathing rate determine how 'fit and healthy' someone is?

Fit people are able to carry out physical activities more effectively than unfit people and their pulse and breathing rate will be lower and likely to return back to normal more quickly after exercise.

What is Gas Exchange?

Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs and out of the body.

How Does Your Heart Beat Differently With Exercise?

How fast the heart beats depends on the body's need for oxygen-rich blood and energy production.

Why does breathing rate increase?

It increases because the body needs more oxygen to go to the muscles in your body.

Why does our body need it?

Oxygen is important because it plays a part in the chemical reaction that releases the energy we take in as food. Every living part of the body needs that energy to work.

How are the circulatory system and the respiratory system related?

The circulatory system and the respiratory system work closely together to ensure that organ tissues receive enough oxygen.

What happens when you breathe in?

When you breathe in, your diaphragm relaxes and moves downward, while your chest moves up and out. This increases the space in your chest cavity, which makes your lungs expand.

What happens when you breathe out?

When you breathe out, your diaphragm contracts and pushes upwards, while your chest moves down and in. The decreases the space in your chest cavity which pushes air out.